Finding the Fourth Proportional to 1,114,738.72, 1,671,697.91 and 385,076.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114,738.72 : 1,671,697.91 = 385,076.24 : x
2. Step 2: Convert to fraction form
   1,114,738.72/1,671,697.91 = 385,076.24/x
3. Step 3: Cross multiply
   1,114,738.72x = 1,671,697.91 × 385,076.24
4. Step 4: Simplify right side
   1,114,738.72x = 643,731,150,740.59
5. Step 5: Solve for x
   x = 643,731,150,740.59/1,114,738.72
6. Step 6: Final answer
   x = 577,472.68