Finding the Fourth Proportional to 1,574,399.86, 2,172,128.10 and 954,403.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,574,399.86 : 2,172,128.10 = 954,403.81 : x
2. Step 2: Convert to fraction form
   1,574,399.86/2,172,128.10 = 954,403.81/x
3. Step 3: Cross multiply
   1,574,399.86x = 2,172,128.10 × 954,403.81
4. Step 4: Simplify right side
   1,574,399.86x = 2,073,087,337,656.95
5. Step 5: Solve for x
   x = 2,073,087,337,656.95/1,574,399.86
6. Step 6: Final answer
   x = 1,316,747.66