Finding the Fourth Proportional to 1,025.79, 1,536.84 and 971.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,025.79 : 1,536.84 = 971.10 : x
2. Step 2: Convert to fraction form
   1,025.79/1,536.84 = 971.10/x
3. Step 3: Cross multiply
   1,025.79x = 1,536.84 × 971.10
4. Step 4: Simplify right side
   1,025.79x = 1,492,425.32
5. Step 5: Solve for x
   x = 1,492,425.32/1,025.79
6. Step 6: Final answer
   x = 1,454.90