Finding the Fourth Proportional to 5,139.32, 7,710.12 and 1,852.43

Step by Step Solution

1. Step 1: Write the proportion equation
   5,139.32 : 7,710.12 = 1,852.43 : x
2. Step 2: Convert to fraction form
   5,139.32/7,710.12 = 1,852.43/x
3. Step 3: Cross multiply
   5,139.32x = 7,710.12 × 1,852.43
4. Step 4: Simplify right side
   5,139.32x = 14,282,419.04
5. Step 5: Solve for x
   x = 14,282,419.04/5,139.32
6. Step 6: Final answer
   x = 2,779.05