Finding the Fourth Proportional to 1,181.48, 1,770.17 and 742.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181.48 : 1,770.17 = 742.86 : x
2. Step 2: Convert to fraction form
   1,181.48/1,770.17 = 742.86/x
3. Step 3: Cross multiply
   1,181.48x = 1,770.17 × 742.86
4. Step 4: Simplify right side
   1,181.48x = 1,314,984.77
5. Step 5: Solve for x
   x = 1,314,984.77/1,181.48
6. Step 6: Final answer
   x = 1,113.00