Finding the Fourth Proportional to 1,074,256.50, 1,611,385.14 and 275,538.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074,256.50 : 1,611,385.14 = 275,538.06 : x
2. Step 2: Convert to fraction form
   1,074,256.50/1,611,385.14 = 275,538.06/x
3. Step 3: Cross multiply
   1,074,256.50x = 1,611,385.14 × 275,538.06
4. Step 4: Simplify right side
   1,074,256.50x = 443,997,935,388.43
5. Step 5: Solve for x
   x = 443,997,935,388.43/1,074,256.50
6. Step 6: Final answer
   x = 413,307.19