Finding the Fourth Proportional to 1,492,498.37, 2,238,088.76 and 427,298.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492,498.37 : 2,238,088.76 = 427,298.69 : x
2. Step 2: Convert to fraction form
   1,492,498.37/2,238,088.76 = 427,298.69/x
3. Step 3: Cross multiply
   1,492,498.37x = 2,238,088.76 × 427,298.69
4. Step 4: Simplify right side
   1,492,498.37x = 956,332,393,115.23
5. Step 5: Solve for x
   x = 956,332,393,115.23/1,492,498.37
6. Step 6: Final answer
   x = 640,759.42