Finding the Fourth Proportional to 2,391,666.28, 3,587,499.69 and 971,723.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391,666.28 : 3,587,499.69 = 971,723.32 : x
2. Step 2: Convert to fraction form
   2,391,666.28/3,587,499.69 = 971,723.32/x
3. Step 3: Cross multiply
   2,391,666.28x = 3,587,499.69 × 971,723.32
4. Step 4: Simplify right side
   2,391,666.28x = 3,486,057,109,265.77
5. Step 5: Solve for x
   x = 3,486,057,109,265.77/2,391,666.28
6. Step 6: Final answer
   x = 1,457,585.09