Finding the Fourth Proportional to 2,077.50, 3,116.80 and 923.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.50 : 3,116.80 = 923.52 : x
2. Step 2: Convert to fraction form
   2,077.50/3,116.80 = 923.52/x
3. Step 3: Cross multiply
   2,077.50x = 3,116.80 × 923.52
4. Step 4: Simplify right side
   2,077.50x = 2,878,427.14
5. Step 5: Solve for x
   x = 2,878,427.14/2,077.50
6. Step 6: Final answer
   x = 1,385.52