Finding the Fourth Proportional to 1,887.62, 2,604.80 and 1,142.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,887.62 : 2,604.80 = 1,142.00 : x
2. Step 2: Convert to fraction form
   1,887.62/2,604.80 = 1,142.00/x
3. Step 3: Cross multiply
   1,887.62x = 2,604.80 × 1,142.00
4. Step 4: Simplify right side
   1,887.62x = 2,974,665.72
5. Step 5: Solve for x
   x = 2,974,665.72/1,887.62
6. Step 6: Final answer
   x = 1,575.88