Finding the Fourth Proportional to 1,380.02, 1,902.56 and 1,337.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380.02 : 1,902.56 = 1,337.00 : x
2. Step 2: Convert to fraction form
   1,380.02/1,902.56 = 1,337.00/x
3. Step 3: Cross multiply
   1,380.02x = 1,902.56 × 1,337.00
4. Step 4: Simplify right side
   1,380.02x = 2,543,706.52
5. Step 5: Solve for x
   x = 2,543,706.52/1,380.02
6. Step 6: Final answer
   x = 1,843.25