Finding the Fourth Proportional to 1,090,280, 1,635,434.72 and 342,326.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,090,280 : 1,635,434.72 = 342,326.08 : x
2. Step 2: Convert to fraction form
   1,090,280/1,635,434.72 = 342,326.08/x
3. Step 3: Cross multiply
   1,090,280x = 1,635,434.72 × 342,326.08
4. Step 4: Simplify right side
   1,090,280x = 559,851,956,793.50
5. Step 5: Solve for x
   x = 559,851,956,793.50/1,090,280
6. Step 6: Final answer
   x = 513,493.74