Finding the Fourth Proportional to 1,103.76, 1,656.18 and 526.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.76 : 1,656.18 = 526.50 : x
2. Step 2: Convert to fraction form
   1,103.76/1,656.18 = 526.50/x
3. Step 3: Cross multiply
   1,103.76x = 1,656.18 × 526.50
4. Step 4: Simplify right side
   1,103.76x = 871,978.77
5. Step 5: Solve for x
   x = 871,978.77/1,103.76
6. Step 6: Final answer
   x = 790.01