Finding the Fourth Proportional to 1,827.91, 2,522.52 and 988.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,827.91 : 2,522.52 = 988.61 : x
2. Step 2: Convert to fraction form
   1,827.91/2,522.52 = 988.61/x
3. Step 3: Cross multiply
   1,827.91x = 2,522.52 × 988.61
4. Step 4: Simplify right side
   1,827.91x = 2,493,782.98
5. Step 5: Solve for x
   x = 2,493,782.98/1,827.91
6. Step 6: Final answer
   x = 1,364.28