Finding the Fourth Proportional to 1,520.10, 2,098.50 and 1,025.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,520.10 : 2,098.50 = 1,025.34 : x
2. Step 2: Convert to fraction form
   1,520.10/2,098.50 = 1,025.34/x
3. Step 3: Cross multiply
   1,520.10x = 2,098.50 × 1,025.34
4. Step 4: Simplify right side
   1,520.10x = 2,151,675.99
5. Step 5: Solve for x
   x = 2,151,675.99/1,520.10
6. Step 6: Final answer
   x = 1,415.48