Finding the Fourth Proportional to 1,343.52, 1,854.04 and 900.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.52 : 1,854.04 = 900.72 : x
2. Step 2: Convert to fraction form
   1,343.52/1,854.04 = 900.72/x
3. Step 3: Cross multiply
   1,343.52x = 1,854.04 × 900.72
4. Step 4: Simplify right side
   1,343.52x = 1,669,970.91
5. Step 5: Solve for x
   x = 1,669,970.91/1,343.52
6. Step 6: Final answer
   x = 1,242.98