Finding the Fourth Proportional to 978,761.88, 1,468,124.46 and 402,263.82

Step by Step Solution

1. Step 1: Write the proportion equation
   978,761.88 : 1,468,124.46 = 402,263.82 : x
2. Step 2: Convert to fraction form
   978,761.88/1,468,124.46 = 402,263.82/x
3. Step 3: Cross multiply
   978,761.88x = 1,468,124.46 × 402,263.82
4. Step 4: Simplify right side
   978,761.88x = 590,573,353,515.04
5. Step 5: Solve for x
   x = 590,573,353,515.04/978,761.88
6. Step 6: Final answer
   x = 603,388.18