Finding the Fourth Proportional to 1,113.30, 1,535.31 and 948.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,113.30 : 1,535.31 = 948.06 : x
2. Step 2: Convert to fraction form
   1,113.30/1,535.31 = 948.06/x
3. Step 3: Cross multiply
   1,113.30x = 1,535.31 × 948.06
4. Step 4: Simplify right side
   1,113.30x = 1,455,566.00
5. Step 5: Solve for x
   x = 1,455,566.00/1,113.30
6. Step 6: Final answer
   x = 1,307.43