Finding the Fourth Proportional to 1,687,766.55, 2,329,177.05 and 923,820.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,687,766.55 : 2,329,177.05 = 923,820.72 : x
2. Step 2: Convert to fraction form
   1,687,766.55/2,329,177.05 = 923,820.72/x
3. Step 3: Cross multiply
   1,687,766.55x = 2,329,177.05 × 923,820.72
4. Step 4: Simplify right side
   1,687,766.55x = 2,151,742,019,338.48
5. Step 5: Solve for x
   x = 2,151,742,019,338.48/1,687,766.55
6. Step 6: Final answer
   x = 1,274,905.00