Finding the Fourth Proportional to 1,513.31, 2,088.42 and 883.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.31 : 2,088.42 = 883.74 : x
2. Step 2: Convert to fraction form
   1,513.31/2,088.42 = 883.74/x
3. Step 3: Cross multiply
   1,513.31x = 2,088.42 × 883.74
4. Step 4: Simplify right side
   1,513.31x = 1,845,620.29
5. Step 5: Solve for x
   x = 1,845,620.29/1,513.31
6. Step 6: Final answer
   x = 1,219.59