Finding the Fourth Proportional to 1,077.86, 1,617.63 and 751.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077.86 : 1,617.63 = 751.10 : x
2. Step 2: Convert to fraction form
   1,077.86/1,617.63 = 751.10/x
3. Step 3: Cross multiply
   1,077.86x = 1,617.63 × 751.10
4. Step 4: Simplify right side
   1,077.86x = 1,215,001.89
5. Step 5: Solve for x
   x = 1,215,001.89/1,077.86
6. Step 6: Final answer
   x = 1,127.24