Finding the Fourth Proportional to 1,402.72, 2,094.20 and 1,159.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.72 : 2,094.20 = 1,159.72 : x
2. Step 2: Convert to fraction form
   1,402.72/2,094.20 = 1,159.72/x
3. Step 3: Cross multiply
   1,402.72x = 2,094.20 × 1,159.72
4. Step 4: Simplify right side
   1,402.72x = 2,428,685.62
5. Step 5: Solve for x
   x = 2,428,685.62/1,402.72
6. Step 6: Final answer
   x = 1,731.41