Finding the Fourth Proportional to 1,341.52, 1,854.72 and 1,011.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,341.52 : 1,854.72 = 1,011.64 : x
2. Step 2: Convert to fraction form
   1,341.52/1,854.72 = 1,011.64/x
3. Step 3: Cross multiply
   1,341.52x = 1,854.72 × 1,011.64
4. Step 4: Simplify right side
   1,341.52x = 1,876,308.94
5. Step 5: Solve for x
   x = 1,876,308.94/1,341.52
6. Step 6: Final answer
   x = 1,398.64