Finding the Fourth Proportional to 1,103.49, 1,656.32 and 526.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.49 : 1,656.32 = 526.77 : x
2. Step 2: Convert to fraction form
   1,103.49/1,656.32 = 526.77/x
3. Step 3: Cross multiply
   1,103.49x = 1,656.32 × 526.77
4. Step 4: Simplify right side
   1,103.49x = 872,499.69
5. Step 5: Solve for x
   x = 872,499.69/1,103.49
6. Step 6: Final answer
   x = 790.67