Finding the Fourth Proportional to 1,126.10, 1,554.59 and 707.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,126.10 : 1,554.59 = 707.07 : x
2. Step 2: Convert to fraction form
   1,126.10/1,554.59 = 707.07/x
3. Step 3: Cross multiply
   1,126.10x = 1,554.59 × 707.07
4. Step 4: Simplify right side
   1,126.10x = 1,099,200.42
5. Step 5: Solve for x
   x = 1,099,200.42/1,126.10
6. Step 6: Final answer
   x = 976.12