Finding the Fourth Proportional to 1,432.17, 2,147.04 and 554.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.17 : 2,147.04 = 554.18 : x
2. Step 2: Convert to fraction form
   1,432.17/2,147.04 = 554.18/x
3. Step 3: Cross multiply
   1,432.17x = 2,147.04 × 554.18
4. Step 4: Simplify right side
   1,432.17x = 1,189,835.89
5. Step 5: Solve for x
   x = 1,189,835.89/1,432.17
6. Step 6: Final answer
   x = 830.79