Finding the Fourth Proportional to 1,112,706.67, 1,666,464.27 and 812,442.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112,706.67 : 1,666,464.27 = 812,442.52 : x
2. Step 2: Convert to fraction form
   1,112,706.67/1,666,464.27 = 812,442.52/x
3. Step 3: Cross multiply
   1,112,706.67x = 1,666,464.27 × 812,442.52
4. Step 4: Simplify right side
   1,112,706.67x = 1,353,906,431,008.76
5. Step 5: Solve for x
   x = 1,353,906,431,008.76/1,112,706.67
6. Step 6: Final answer
   x = 1,216,768.50