Finding the Fourth Proportional to 1,178,483.30, 1,626,185.78 and 662,155.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,178,483.30 : 1,626,185.78 = 662,155.15 : x
2. Step 2: Convert to fraction form
   1,178,483.30/1,626,185.78 = 662,155.15/x
3. Step 3: Cross multiply
   1,178,483.30x = 1,626,185.78 × 662,155.15
4. Step 4: Simplify right side
   1,178,483.30x = 1,076,787,285,772.99
5. Step 5: Solve for x
   x = 1,076,787,285,772.99/1,178,483.30
6. Step 6: Final answer
   x = 913,706.02