Finding the Fourth Proportional to 2,191,403.86, 3,024,079.31 and 1,224,542.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191,403.86 : 3,024,079.31 = 1,224,542.10 : x
2. Step 2: Convert to fraction form
   2,191,403.86/3,024,079.31 = 1,224,542.10/x
3. Step 3: Cross multiply
   2,191,403.86x = 3,024,079.31 × 1,224,542.10
4. Step 4: Simplify right side
   2,191,403.86x = 3,703,112,413,713.55
5. Step 5: Solve for x
   x = 3,703,112,413,713.55/2,191,403.86
6. Step 6: Final answer
   x = 1,689,835.67