Finding the Fourth Proportional to 692,978.50, 956,310.33 and 375,026.50

Step by Step Solution

1. Step 1: Write the proportion equation
   692,978.50 : 956,310.33 = 375,026.50 : x
2. Step 2: Convert to fraction form
   692,978.50/956,310.33 = 375,026.50/x
3. Step 3: Cross multiply
   692,978.50x = 956,310.33 × 375,026.50
4. Step 4: Simplify right side
   692,978.50x = 358,641,715,973.75
5. Step 5: Solve for x
   x = 358,641,715,973.75/692,978.50
6. Step 6: Final answer
   x = 517,536.57