Finding the Fourth Proportional to 2,530.32, 3,789.41 and 1,977.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,530.32 : 3,789.41 = 1,977.90 : x
2. Step 2: Convert to fraction form
   2,530.32/3,789.41 = 1,977.90/x
3. Step 3: Cross multiply
   2,530.32x = 3,789.41 × 1,977.90
4. Step 4: Simplify right side
   2,530.32x = 7,495,064.15
5. Step 5: Solve for x
   x = 7,495,064.15/2,530.32
6. Step 6: Final answer
   x = 2,962.10