Finding the Fourth Proportional to 1,665,279,327.57, 2,298,088,169.10 and 912,472,889.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665,279,327.57 : 2,298,088,169.10 = 912,472,889.88 : x
2. Step 2: Convert to fraction form
   1,665,279,327.57/2,298,088,169.10 = 912,472,889.88/x
3. Step 3: Cross multiply
   1,665,279,327.57x = 2,298,088,169.10 × 912,472,889.88
4. Step 4: Simplify right side
   1,665,279,327.57x = 2,096,943,152,857,714,944
5. Step 5: Solve for x
   x = 2,096,943,152,857,714,944/1,665,279,327.57
6. Step 6: Final answer
   x = 1,259,214,065.86