Finding the Fourth Proportional to 1,407.04, 1,931.31 and 1,346.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.04 : 1,931.31 = 1,346.90 : x
2. Step 2: Convert to fraction form
   1,407.04/1,931.31 = 1,346.90/x
3. Step 3: Cross multiply
   1,407.04x = 1,931.31 × 1,346.90
4. Step 4: Simplify right side
   1,407.04x = 2,601,271.78
5. Step 5: Solve for x
   x = 2,601,271.78/1,407.04
6. Step 6: Final answer
   x = 1,848.76