Finding the Fourth Proportional to 1,404.59, 1,937.72 and 1,030.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.59 : 1,937.72 = 1,030.91 : x
2. Step 2: Convert to fraction form
   1,404.59/1,937.72 = 1,030.91/x
3. Step 3: Cross multiply
   1,404.59x = 1,937.72 × 1,030.91
4. Step 4: Simplify right side
   1,404.59x = 1,997,600.08
5. Step 5: Solve for x
   x = 1,997,600.08/1,404.59
6. Step 6: Final answer
   x = 1,422.20