Finding the Fourth Proportional to 1,402.08, 1,932.84 and 981.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.08 : 1,932.84 = 981.12 : x
2. Step 2: Convert to fraction form
   1,402.08/1,932.84 = 981.12/x
3. Step 3: Cross multiply
   1,402.08x = 1,932.84 × 981.12
4. Step 4: Simplify right side
   1,402.08x = 1,896,347.98
5. Step 5: Solve for x
   x = 1,896,347.98/1,402.08
6. Step 6: Final answer
   x = 1,352.52