Finding the Fourth Proportional to 1,672.08, 2,307.53 and 1,111.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.08 : 2,307.53 = 1,111.58 : x
2. Step 2: Convert to fraction form
   1,672.08/2,307.53 = 1,111.58/x
3. Step 3: Cross multiply
   1,672.08x = 2,307.53 × 1,111.58
4. Step 4: Simplify right side
   1,672.08x = 2,564,987.10
5. Step 5: Solve for x
   x = 2,564,987.10/1,672.08
6. Step 6: Final answer
   x = 1,534.01