Finding the Fourth Proportional to 1,280,128.24, 1,766,630.64 and 736,264.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,280,128.24 : 1,766,630.64 = 736,264.18 : x
2. Step 2: Convert to fraction form
   1,280,128.24/1,766,630.64 = 736,264.18/x
3. Step 3: Cross multiply
   1,280,128.24x = 1,766,630.64 × 736,264.18
4. Step 4: Simplify right side
   1,280,128.24x = 1,300,706,859,522.48
5. Step 5: Solve for x
   x = 1,300,706,859,522.48/1,280,128.24
6. Step 6: Final answer
   x = 1,016,075.44