Finding the Fourth Proportional to 2,113,329.62, 2,916,394.89 and 1,207,931.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113,329.62 : 2,916,394.89 = 1,207,931.06 : x
2. Step 2: Convert to fraction form
   2,113,329.62/2,916,394.89 = 1,207,931.06/x
3. Step 3: Cross multiply
   2,113,329.62x = 2,916,394.89 × 1,207,931.06
4. Step 4: Simplify right side
   2,113,329.62x = 3,522,803,970,856.28
5. Step 5: Solve for x
   x = 3,522,803,970,856.28/2,113,329.62
6. Step 6: Final answer
   x = 1,666,944.87