Finding the Fourth Proportional to 2,191.77, 3,025.42 and 1,307.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.77 : 3,025.42 = 1,307.58 : x
2. Step 2: Convert to fraction form
   2,191.77/3,025.42 = 1,307.58/x
3. Step 3: Cross multiply
   2,191.77x = 3,025.42 × 1,307.58
4. Step 4: Simplify right side
   2,191.77x = 3,955,957.02
5. Step 5: Solve for x
   x = 3,955,957.02/2,191.77
6. Step 6: Final answer
   x = 1,804.91