Finding the Fourth Proportional to 1,152.35, 1,590.25 and 654.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.35 : 1,590.25 = 654.99 : x
2. Step 2: Convert to fraction form
   1,152.35/1,590.25 = 654.99/x
3. Step 3: Cross multiply
   1,152.35x = 1,590.25 × 654.99
4. Step 4: Simplify right side
   1,152.35x = 1,041,602.17
5. Step 5: Solve for x
   x = 1,041,602.17/1,152.35
6. Step 6: Final answer
   x = 903.89