Finding the Fourth Proportional to 1,602.72, 2,402.80 and 1,076.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,602.72 : 2,402.80 = 1,076.18 : x
2. Step 2: Convert to fraction form
   1,602.72/2,402.80 = 1,076.18/x
3. Step 3: Cross multiply
   1,602.72x = 2,402.80 × 1,076.18
4. Step 4: Simplify right side
   1,602.72x = 2,585,830.60
5. Step 5: Solve for x
   x = 2,585,830.60/1,602.72
6. Step 6: Final answer
   x = 1,613.40