Finding the Fourth Proportional to 1,055,188.32, 1,456,128.24 and 602,390.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055,188.32 : 1,456,128.24 = 602,390.88 : x
2. Step 2: Convert to fraction form
   1,055,188.32/1,456,128.24 = 602,390.88/x
3. Step 3: Cross multiply
   1,055,188.32x = 1,456,128.24 × 602,390.88
4. Step 4: Simplify right side
   1,055,188.32x = 877,158,371,886.45
5. Step 5: Solve for x
   x = 877,158,371,886.45/1,055,188.32
6. Step 6: Final answer
   x = 831,281.35