Finding the Fourth Proportional to 1,175.29, 1,621.89 and 651.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,175.29 : 1,621.89 = 651.31 : x
2. Step 2: Convert to fraction form
   1,175.29/1,621.89 = 651.31/x
3. Step 3: Cross multiply
   1,175.29x = 1,621.89 × 651.31
4. Step 4: Simplify right side
   1,175.29x = 1,056,353.18
5. Step 5: Solve for x
   x = 1,056,353.18/1,175.29
6. Step 6: Final answer
   x = 898.80