Finding the Fourth Proportional to 931,358, 1,285,275.72 and 528,950

Step by Step Solution

1. Step 1: Write the proportion equation
   931,358 : 1,285,275.72 = 528,950 : x
2. Step 2: Convert to fraction form
   931,358/1,285,275.72 = 528,950/x
3. Step 3: Cross multiply
   931,358x = 1,285,275.72 × 528,950
4. Step 4: Simplify right side
   931,358x = 679,846,592,094
5. Step 5: Solve for x
   x = 679,846,592,094/931,358
6. Step 6: Final answer
   x = 729,951.95