Finding the Fourth Proportional to 1,113,307.12, 1,537,162.72 and 684,162.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,113,307.12 : 1,537,162.72 = 684,162.64 : x
2. Step 2: Convert to fraction form
   1,113,307.12/1,537,162.72 = 684,162.64/x
3. Step 3: Cross multiply
   1,113,307.12x = 1,537,162.72 × 684,162.64
4. Step 4: Simplify right side
   1,113,307.12x = 1,051,669,304,624.78
5. Step 5: Solve for x
   x = 1,051,669,304,624.78/1,113,307.12
6. Step 6: Final answer
   x = 944,635.39