Finding the Fourth Proportional to 1,807.01, 2,492.72 and 1,142.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,807.01 : 2,492.72 = 1,142.71 : x
2. Step 2: Convert to fraction form
   1,807.01/2,492.72 = 1,142.71/x
3. Step 3: Cross multiply
   1,807.01x = 2,492.72 × 1,142.71
4. Step 4: Simplify right side
   1,807.01x = 2,848,454.84
5. Step 5: Solve for x
   x = 2,848,454.84/1,807.01
6. Step 6: Final answer
   x = 1,576.34