Finding the Fourth Proportional to 1,175,059.50, 1,621,647.72 and 665,925.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,175,059.50 : 1,621,647.72 = 665,925.90 : x
2. Step 2: Convert to fraction form
   1,175,059.50/1,621,647.72 = 665,925.90/x
3. Step 3: Cross multiply
   1,175,059.50x = 1,621,647.72 × 665,925.90
4. Step 4: Simplify right side
   1,175,059.50x = 1,079,897,217,423.95
5. Step 5: Solve for x
   x = 1,079,897,217,423.95/1,175,059.50
6. Step 6: Final answer
   x = 919,014.92