Finding the Fourth Proportional to 1,543.59, 2,130.89 and 984.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,543.59 : 2,130.89 = 984.15 : x
2. Step 2: Convert to fraction form
   1,543.59/2,130.89 = 984.15/x
3. Step 3: Cross multiply
   1,543.59x = 2,130.89 × 984.15
4. Step 4: Simplify right side
   1,543.59x = 2,097,110.47
5. Step 5: Solve for x
   x = 2,097,110.47/1,543.59
6. Step 6: Final answer
   x = 1,358.59