Finding the Fourth Proportional to 2,113,300.13, 2,916,354.17 and 1,207,901.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113,300.13 : 2,916,354.17 = 1,207,901.57 : x
2. Step 2: Convert to fraction form
   2,113,300.13/2,916,354.17 = 1,207,901.57/x
3. Step 3: Cross multiply
   2,113,300.13x = 2,916,354.17 × 1,207,901.57
4. Step 4: Simplify right side
   2,113,300.13x = 3,522,668,769,057.03
5. Step 5: Solve for x
   x = 3,522,668,769,057.03/2,113,300.13
6. Step 6: Final answer
   x = 1,666,904.16