Finding the Fourth Proportional to 2,145,815.69, 3,218,081.51 and 706,233.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145,815.69 : 3,218,081.51 = 706,233.35 : x
2. Step 2: Convert to fraction form
   2,145,815.69/3,218,081.51 = 706,233.35/x
3. Step 3: Cross multiply
   2,145,815.69x = 3,218,081.51 × 706,233.35
4. Step 4: Simplify right side
   2,145,815.69x = 2,272,716,495,191.15
5. Step 5: Solve for x
   x = 2,272,716,495,191.15/2,145,815.69
6. Step 6: Final answer
   x = 1,059,138.73