Finding the Fourth Proportional to 1,925.10, 2,656.59 and 1,085.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,925.10 : 2,656.59 = 1,085.81 : x
2. Step 2: Convert to fraction form
   1,925.10/2,656.59 = 1,085.81/x
3. Step 3: Cross multiply
   1,925.10x = 2,656.59 × 1,085.81
4. Step 4: Simplify right side
   1,925.10x = 2,884,538.70
5. Step 5: Solve for x
   x = 2,884,538.70/1,925.10
6. Step 6: Final answer
   x = 1,498.38