Finding the Fourth Proportional to 1,254.52, 1,881.83 and 561.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,254.52 : 1,881.83 = 561.05 : x
2. Step 2: Convert to fraction form
   1,254.52/1,881.83 = 561.05/x
3. Step 3: Cross multiply
   1,254.52x = 1,881.83 × 561.05
4. Step 4: Simplify right side
   1,254.52x = 1,055,802.62
5. Step 5: Solve for x
   x = 1,055,802.62/1,254.52
6. Step 6: Final answer
   x = 841.60