Finding the Fourth Proportional to 1,513.35, 2,088.43 and 883.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.35 : 2,088.43 = 883.91 : x
2. Step 2: Convert to fraction form
   1,513.35/2,088.43 = 883.91/x
3. Step 3: Cross multiply
   1,513.35x = 2,088.43 × 883.91
4. Step 4: Simplify right side
   1,513.35x = 1,845,987.17
5. Step 5: Solve for x
   x = 1,845,987.17/1,513.35
6. Step 6: Final answer
   x = 1,219.80