Finding the Fourth Proportional to 1,407.10, 1,927.69 and 1,354.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.10 : 1,927.69 = 1,354.52 : x
2. Step 2: Convert to fraction form
   1,407.10/1,927.69 = 1,354.52/x
3. Step 3: Cross multiply
   1,407.10x = 1,927.69 × 1,354.52
4. Step 4: Simplify right side
   1,407.10x = 2,611,094.66
5. Step 5: Solve for x
   x = 2,611,094.66/1,407.10
6. Step 6: Final answer
   x = 1,855.66