Finding the Fourth Proportional to 1,513.08, 2,090.72 and 1,166.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.08 : 2,090.72 = 1,166.76 : x
2. Step 2: Convert to fraction form
   1,513.08/2,090.72 = 1,166.76/x
3. Step 3: Cross multiply
   1,513.08x = 2,090.72 × 1,166.76
4. Step 4: Simplify right side
   1,513.08x = 2,439,368.47
5. Step 5: Solve for x
   x = 2,439,368.47/1,513.08
6. Step 6: Final answer
   x = 1,612.19