Finding the Fourth Proportional to 782,978, 1,080,510.72 and 425,282

Step by Step Solution

1. Step 1: Write the proportion equation
   782,978 : 1,080,510.72 = 425,282 : x
2. Step 2: Convert to fraction form
   782,978/1,080,510.72 = 425,282/x
3. Step 3: Cross multiply
   782,978x = 1,080,510.72 × 425,282
4. Step 4: Simplify right side
   782,978x = 459,521,760,023.04
5. Step 5: Solve for x
   x = 459,521,760,023.04/782,978
6. Step 6: Final answer
   x = 586,889.75