Finding the Fourth Proportional to 961,128.76, 1,326,255.72 and 531,339.52

Step by Step Solution

1. Step 1: Write the proportion equation
   961,128.76 : 1,326,255.72 = 531,339.52 : x
2. Step 2: Convert to fraction form
   961,128.76/1,326,255.72 = 531,339.52/x
3. Step 3: Cross multiply
   961,128.76x = 1,326,255.72 × 531,339.52
4. Step 4: Simplify right side
   961,128.76x = 704,692,077,662.06
5. Step 5: Solve for x
   x = 704,692,077,662.06/961,128.76
6. Step 6: Final answer
   x = 733,192.17