Finding the Fourth Proportional to 1,182.15, 1,631.61 and 901.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182.15 : 1,631.61 = 901.98 : x
2. Step 2: Convert to fraction form
   1,182.15/1,631.61 = 901.98/x
3. Step 3: Cross multiply
   1,182.15x = 1,631.61 × 901.98
4. Step 4: Simplify right side
   1,182.15x = 1,471,679.59
5. Step 5: Solve for x
   x = 1,471,679.59/1,182.15
6. Step 6: Final answer
   x = 1,244.92