Finding the Fourth Proportional to 1,123,103.10, 1,685,237.85 and 492,080.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,103.10 : 1,685,237.85 = 492,080.70 : x
2. Step 2: Convert to fraction form
   1,123,103.10/1,685,237.85 = 492,080.70/x
3. Step 3: Cross multiply
   1,123,103.10x = 1,685,237.85 × 492,080.70
4. Step 4: Simplify right side
   1,123,103.10x = 829,273,020,894.50
5. Step 5: Solve for x
   x = 829,273,020,894.50/1,123,103.10
6. Step 6: Final answer
   x = 738,376.58