Finding the Fourth Proportional to 2,131,123.76, 2,941,008.51 and 1,272,182.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131,123.76 : 2,941,008.51 = 1,272,182.55 : x
2. Step 2: Convert to fraction form
   2,131,123.76/2,941,008.51 = 1,272,182.55/x
3. Step 3: Cross multiply
   2,131,123.76x = 2,941,008.51 × 1,272,182.55
4. Step 4: Simplify right side
   2,131,123.76x = 3,741,499,705,823.50
5. Step 5: Solve for x
   x = 3,741,499,705,823.50/2,131,123.76
6. Step 6: Final answer
   x = 1,755,646.38