Finding the Fourth Proportional to 1,801.10, 2,702.71 and 761.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,801.10 : 2,702.71 = 761.03 : x
2. Step 2: Convert to fraction form
   1,801.10/2,702.71 = 761.03/x
3. Step 3: Cross multiply
   1,801.10x = 2,702.71 × 761.03
4. Step 4: Simplify right side
   1,801.10x = 2,056,839.59
5. Step 5: Solve for x
   x = 2,056,839.59/1,801.10
6. Step 6: Final answer
   x = 1,141.99