Finding the Fourth Proportional to 1,043.91, 1,440.86 and 651.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,043.91 : 1,440.86 = 651.39 : x
2. Step 2: Convert to fraction form
   1,043.91/1,440.86 = 651.39/x
3. Step 3: Cross multiply
   1,043.91x = 1,440.86 × 651.39
4. Step 4: Simplify right side
   1,043.91x = 938,561.80
5. Step 5: Solve for x
   x = 938,561.80/1,043.91
6. Step 6: Final answer
   x = 899.08