Finding the Fourth Proportional to 2,107,288.18, 2,908,065.18 and 1,140,418.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,107,288.18 : 2,908,065.18 = 1,140,418.30 : x
2. Step 2: Convert to fraction form
   2,107,288.18/2,908,065.18 = 1,140,418.30/x
3. Step 3: Cross multiply
   2,107,288.18x = 2,908,065.18 × 1,140,418.30
4. Step 4: Simplify right side
   2,107,288.18x = 3,316,410,748,864.79
5. Step 5: Solve for x
   x = 3,316,410,748,864.79/2,107,288.18
6. Step 6: Final answer
   x = 1,573,781.31