Finding the Fourth Proportional to 1,127.60, 1,556.27 and 655.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,127.60 : 1,556.27 = 655.50 : x
2. Step 2: Convert to fraction form
   1,127.60/1,556.27 = 655.50/x
3. Step 3: Cross multiply
   1,127.60x = 1,556.27 × 655.50
4. Step 4: Simplify right side
   1,127.60x = 1,020,131.71
5. Step 5: Solve for x
   x = 1,020,131.71/1,127.60
6. Step 6: Final answer
   x = 904.70