Finding the Fourth Proportional to 1,561.60, 2,341.51 and 1,254.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561.60 : 2,341.51 = 1,254.02 : x
2. Step 2: Convert to fraction form
   1,561.60/2,341.51 = 1,254.02/x
3. Step 3: Cross multiply
   1,561.60x = 2,341.51 × 1,254.02
4. Step 4: Simplify right side
   1,561.60x = 2,936,300.37
5. Step 5: Solve for x
   x = 2,936,300.37/1,561.60
6. Step 6: Final answer
   x = 1,880.32