Finding the Fourth Proportional to 1,494,487, 2,062,390.86 and 815,423.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,494,487 : 2,062,390.86 = 815,423.50 : x
2. Step 2: Convert to fraction form
   1,494,487/2,062,390.86 = 815,423.50/x
3. Step 3: Cross multiply
   1,494,487x = 2,062,390.86 × 815,423.50
4. Step 4: Simplify right side
   1,494,487x = 1,681,721,973,429.21
5. Step 5: Solve for x
   x = 1,681,721,973,429.21/1,494,487
6. Step 6: Final answer
   x = 1,125,283.78