Finding the Fourth Proportional to 2,657.32, 3,667.17 and 1,538.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,657.32 : 3,667.17 = 1,538.60 : x
2. Step 2: Convert to fraction form
   2,657.32/3,667.17 = 1,538.60/x
3. Step 3: Cross multiply
   2,657.32x = 3,667.17 × 1,538.60
4. Step 4: Simplify right side
   2,657.32x = 5,642,307.76
5. Step 5: Solve for x
   x = 5,642,307.76/2,657.32
6. Step 6: Final answer
   x = 2,123.31