Finding the Fourth Proportional to 1,715,123.16, 2,574,226.71 and 917,086.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,715,123.16 : 2,574,226.71 = 917,086.86 : x
2. Step 2: Convert to fraction form
   1,715,123.16/2,574,226.71 = 917,086.86/x
3. Step 3: Cross multiply
   1,715,123.16x = 2,574,226.71 × 917,086.86
4. Step 4: Simplify right side
   1,715,123.16x = 2,360,789,490,402.03
5. Step 5: Solve for x
   x = 2,360,789,490,402.03/1,715,123.16
6. Step 6: Final answer
   x = 1,376,454.79