Finding the Fourth Proportional to 1,985.01, 2,978.15 and 752.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,985.01 : 2,978.15 = 752.52 : x
2. Step 2: Convert to fraction form
   1,985.01/2,978.15 = 752.52/x
3. Step 3: Cross multiply
   1,985.01x = 2,978.15 × 752.52
4. Step 4: Simplify right side
   1,985.01x = 2,241,113.68
5. Step 5: Solve for x
   x = 2,241,113.68/1,985.01
6. Step 6: Final answer
   x = 1,129.02