Finding the Fourth Proportional to 2,592.90, 3,887.01 and 948.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,592.90 : 3,887.01 = 948.30 : x
2. Step 2: Convert to fraction form
   2,592.90/3,887.01 = 948.30/x
3. Step 3: Cross multiply
   2,592.90x = 3,887.01 × 948.30
4. Step 4: Simplify right side
   2,592.90x = 3,686,051.58
5. Step 5: Solve for x
   x = 3,686,051.58/2,592.90
6. Step 6: Final answer
   x = 1,421.59