Finding the Fourth Proportional to 1,432.50, 1,976.88 and 803.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.50 : 1,976.88 = 803.00 : x
2. Step 2: Convert to fraction form
   1,432.50/1,976.88 = 803.00/x
3. Step 3: Cross multiply
   1,432.50x = 1,976.88 × 803.00
4. Step 4: Simplify right side
   1,432.50x = 1,587,424.76
5. Step 5: Solve for x
   x = 1,587,424.76/1,432.50
6. Step 6: Final answer
   x = 1,108.15